A331633 Distinct values of A055944 in order of their appearance as n grows.
0, 2, 3, 6, 5, 10, 9, 14, 18, 15, 24, 21, 30, 17, 34, 27, 44, 25, 42, 35, 52, 37, 54, 45, 62, 33, 66, 51, 84, 78, 63, 96, 57, 90, 75, 108, 69, 102, 81, 114, 93, 126, 65, 130, 99, 164, 85, 150, 119, 184, 146, 115, 180, 101, 166, 135, 200, 105, 170, 139, 204
Offset: 1
Examples
A055944 starts: 0, 2, 3, 6, 5, 10, 9, 14, 9, 18, 15, 24, 15, 24, 21, 30, 17, ... We keep: 0, 2, 3, 6, 5, 10, 9, 14, 18, 15, 24, 21, 30, 17, ...
Links
- Rémy Sigrist, Table of n, a(n) for n = 1..10810
- Rémy Sigrist, Colored scatterplot of the first 97734 terms (where the color is function of the 2-adic valuation of the least k such that a(n) = A055944(k))
Programs
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Mathematica
DeleteDuplicates[Array[# + IntegerReverse[#, 2] &, 100, 0]] (* Paolo Xausa, Apr 28 2025 *)
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PARI
s=0; for (n=0, 87, v=n+fromdigits(Vecrev(binary(n)),2); if (!bittest(s, v), print1 (v ", "); s+=2^v))